Abstract
In a packaging bag (10) including multilayer films for packaging (5) including a heat-sealable resin layer (3) on a surface and formed by bonding two of the heat-sealable resin layers (3) of the multilayer films for packaging (5), oriented crystals are present in a seal portion (7) formed by bonding the heat-sealable resin layers (3).
Full Text
What is claimed is:
In a packaging bag (10) including multilayer films for packaging (5) including a heat-sealable resin layer (3) on a surface and formed by bonding two of the heat-sealable resin layers (3) of the multilayer films for packaging (5), oriented crystals are present in a seal portion (7) formed by bonding the heat-sealable resin layers (3).
Timeline
Filed
04/10/2026Published
08/13/2026Granted
Not AvailableIPC Codes(3)
B32B 27/08:of synthetic resin of a different kind
B32B 7/12:using interposed adhesives or interposed materials with bonding properties
B32B 27/32:comprising polyolefins